html,body{
  width: 100%;
  height: 100%;
  background: #F1F1F1;
}
body {
  min-width: 320px;
  max-width: 600px;
  margin: 0 auto;
}
#root{
  height: 100%;
}
code {
  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
    monospace;
}